TY - JOUR ID - 86937 TI - A numerical study on the influence of tunnel excavation on pile foundation JO - International Journal of Mining and Geo-Engineering JA - IJMGE LA - en SN - 2345-6930 AU - Maji, V B AU - Shyam Sundar, P AD - Department of Civil Engineering, IIT Madras, Chennai Y1 - 2023 PY - 2023 VL - 57 IS - 1 SP - 27 EP - 33 KW - Pile KW - tunnel KW - Staged excavation KW - FE analysis KW - PLAXIS3D DO - 10.22059/ijmge.2022.333489.594939 N2 - Tunnel construction in cities faces many geotechnical challenges, and the effect on pile foundation is possibly one of the most complex ones. Most tall buildings in big cities mostly have pile foundations, and any tunneling nearby might significantly influence those existing foundations. In the present study, a 3-dimensional Finite Element (FE) analysis has been carried out to investigate tunneling effects on pile foundations. The investigation is done for a single pile with multiple stages of tunnel excavation where the pile foundations are assumed to reach below the base of the excavation of tunneling. A tentative rate of excavation was also included in this investigation and found that a faster rate of excavation results in better performance of foundations affected by tunneling. The study also extended to see the effect of tunneling on pile groups. Attempts were made to compare the results with some of the previously published literature. UR - https://ijmge.ut.ac.ir/article_86937.html L1 - https://ijmge.ut.ac.ir/article_86937_38ed740ee0a2364c0e6644fd3f64c83b.pdf ER -